#!/usr/bin/env python
#
# Copyright 2004,2005 Free Software Foundation, Inc.
# 
# This file is part of GNU Radio
# 
# GNU Radio is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
# 
# GNU Radio is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
# 
# You should have received a copy of the GNU General Public License
# along with GNU Radio; see the file COPYING.  If not, write to
# the Free Software Foundation, Inc., 51 Franklin Street,
# Boston, MA 02110-1301, USA.
# 

from gnuradio import gr, gr_unittest

class test_head (gr_unittest.TestCase):

    def setUp (self):
        self.fg = gr.flow_graph ()

    def tearDown (self):
        self.fg = None

    def help_ii (self, src_data, exp_data, op):
        for s in zip (range (len (src_data)), src_data):
            src = gr.vector_source_i (s[1])
            self.fg.connect (src, (op, s[0]))
        dst = gr.vector_sink_i ()
        self.fg.connect (op, dst)
        self.fg.run ()
        result_data = dst.data ()
        self.assertEqual (exp_data, result_data)

    def help_ff (self, src_data, exp_data, op):
        for s in zip (range (len (src_data)), src_data):
            src = gr.vector_source_f (s[1])
            self.fg.connect (src, (op, s[0]))
        dst = gr.vector_sink_f ()
        self.fg.connect (op, dst)
        self.fg.run ()
        result_data = dst.data ()
        self.assertEqual (exp_data, result_data)

    def help_cc (self, src_data, exp_data, op):
        for s in zip (range (len (src_data)), src_data):
            src = gr.vector_source_c (s[1])
            self.fg.connect (src, (op, s[0]))
        dst = gr.vector_sink_c ()
        self.fg.connect (op, dst)
        self.fg.run ()
        result_data = dst.data ()
        self.assertEqual (exp_data, result_data)

    def test_unmute_ii(self):
        src_data = (1, 2, 3, 4, 5)
        expected_result = (1, 2, 3, 4, 5)
        op = gr.mute_ii (False)
        self.help_ii ((src_data,), expected_result, op)

    def test_mute_ii(self):
        src_data = (1, 2, 3, 4, 5)
        expected_result = (0, 0, 0, 0, 0)
        op = gr.mute_ii (True)
        self.help_ii ((src_data,), expected_result, op)

    def test_unmute_cc (self):
        src_data = (1+5j, 2+5j, 3+5j, 4+5j, 5+5j)
        expected_result = (1+5j, 2+5j, 3+5j, 4+5j, 5+5j)
        op = gr.mute_cc (False)
        self.help_cc ((src_data,), expected_result, op)

    def test_unmute_cc (self):
        src_data = (1+5j, 2+5j, 3+5j, 4+5j, 5+5j)
        expected_result = (0+0j, 0+0j, 0+0j, 0+0j, 0+0j)
        op = gr.mute_cc (True)
        self.help_cc ((src_data,), expected_result, op)


if __name__ == '__main__':
    gr_unittest.main ()
